There is a lot to be said for having your own kitchen - especially if one is diabetic, as I am.
We do not have an RV, and many of our vacations are in Mexico. We usually stay at places where we have a kitchen. There can be an enormous savings there given the outrageous prices at even reasonably priced restaurants - not to mention the ability to eat more healthfully.
We have often talked about getting a RV, and may some day before too long